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13374710977 = 61219257557
BaseRepresentation
bin11000111010011000…
…11110010011000001
31021112002212201021211
430131030132103001
5204342411222402
610051054250121
7652303111315
oct143514362301
937462781254
1013374710977
115743748351
1227131b6941
131351bca684
1490c429b45
155342bc4d7
hex31d31e4c1

13374710977 has 4 divisors (see below), whose sum is σ = 13593968596. Its totient is φ = 13155453360.

The previous prime is 13374710963. The next prime is 13374711017. The reversal of 13374710977 is 77901747331.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 77901747331 = 149522830519.

It can be written as a sum of positive squares in 2 ways, for example, as 659667856 + 12715043121 = 25684^2 + 112761^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13374710977 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13374710977.

It is not an unprimeable number, because it can be changed into a prime (13374710957) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109628718 + ... + 109628839.

It is an arithmetic number, because the mean of its divisors is an integer number (3398492149).

Almost surely, 213374710977 is an apocalyptic number.

It is an amenable number.

13374710977 is a deficient number, since it is larger than the sum of its proper divisors (219257619).

13374710977 is an equidigital number, since it uses as much as digits as its factorization.

13374710977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219257618.

The product of its (nonzero) digits is 777924, while the sum is 49.

The spelling of 13374710977 in words is "thirteen billion, three hundred seventy-four million, seven hundred ten thousand, nine hundred seventy-seven".

Divisors: 1 61 219257557 13374710977